esp-idf/components/esp_ipc/Kconfig

menu "IPC (Inter-Processor Call)"

    config ESP_IPC_TASK_STACK_SIZE
        int "Inter-Processor Call (IPC) task stack size"
        range 512 65536 if !APPTRACE_ENABLE
        range 2048 65536 if APPTRACE_ENABLE
        default 2048 if APPTRACE_ENABLE
        default 1536
        help
            Configure the IPC tasks stack size. An IPC task runs on each core (in dual core mode), and allows for
            cross-core function calls. See IPC documentation for more details. The default IPC stack size should be
            enough for most common simple use cases. However, users can increase/decrease the stack size to their
            needs.

    config ESP_IPC_USES_CALLERS_PRIORITY
        bool "IPC runs at caller's priority"
        default y
        depends on !FREERTOS_UNICORE
        help
            If this option is not enabled then the IPC task will keep behavior same as prior to that of ESP-IDF v4.0,
            hence IPC task will run at (configMAX_PRIORITIES - 1) priority.

    config ESP_IPC_ISR_ENABLE
        bool
        default y if !FREERTOS_UNICORE
        help
            The IPC ISR feature is similar to the IPC feature except that the callback function is executed in the
            context of a High Priority Interrupt. The IPC ISR feature is itended for low latency execution of simple
            callbacks written in assembly on another CPU. Due to being run in a High Priority Interrupt, the assembly
            callbacks must be written with particular restrictions (see "IPC" and "High-Level Interrupt" docs for more
            details).

endmenu # "IPC (Inter-Processor Call)